Where does “引き金を引く” come from?

引き金を引く (Japanese) comes from Japanese を, from Proto-Japonic wo — accusative marker; away from, off.

引き金を引く (Japanese): to pull the trigger

Definitions

  1. to pull the trigger

Ancestry of “引き金を引く”, step by step

引き金を引く traces back through two separate lines of ancestry.

via Japanese を

StepLanguageWordMeaning
1JapaneseをA case particle; A conjunctive particle, usually...
2Proto-Japonicwoaccusative marker; away from, off

via Japanese 引く

StepLanguageWordMeaning
1Japanese引くto pull (something toward oneself)
Every word from Proto-Japonic wo →Every word from Japanese を →
引き金を引く — Etymology, Origin & Word History | Etymology Explorer